The weak ordinarity conjecture and $F$-singularities

The weak ordinarity conjecture and $F$-singularities
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弱平凡猜想和$F$-奇点

DOI:
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发表时间:
2013
期刊:
影响因子:
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通讯作者:
S. Takagi
S. Takagi
中科院分区:
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文献类型:
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作者:
B. Bhatt;Karl Schwede;S. Takagi

文献摘要

相似文献

最近,M. Mustata 和 V. Srinivas 将关于简化为特征 $p > 0$ 后结构束上同调的 Frobenius 作用的自然猜想与连接乘数理想和检验理想的另一个猜想联系起来。我们将这种关系推广到单一环境变量的情况。此外,我们将这些结果与 $F$ 内射和杜波依斯奇点相关的猜想联系起来。最后,使用 Gabber 未发表的结果,我们还表明 $F$-内射和 Du Bois 奇点在平滑超覆盖方面具有共同的定义。
Recently M. Mustata and V. Srinivas related a natural conjecture about the Frobenius action on the cohomology of the structure sheaf after reduction to characteristic $p > 0$ with another conjecture connecting multiplier ideals and test ideals. We generalize this relation to the case of singular ambient varieties. Additionally, we connect these results to a conjecture relating $F$-injective and Du Bois singularities. Finally, using an unpublished result of Gabber, we also show that $F$-injective and Du Bois singularities have a common definition in terms of smooth hypercovers.